Vulnerability Description
kernel/bpf/verifier.c in the Linux kernel before 4.20.6 performs undesirable out-of-bounds speculation on pointer arithmetic in various cases, including cases of different branches with different state or limits to sanitize, leading to side-channel attacks.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.19.19 |
| Canonical | Ubuntu Linux | 14.04 |
| Opensuse | Leap | 15.0 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=979d63PatchThird Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d3bd74PatchThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.htmlThird Party Advisory
- http://www.securityfocus.com/bid/106827Third Party AdvisoryVDB Entry
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1711Issue TrackingPatchThird Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.6Third Party Advisory
- https://github.com/torvalds/linux/commit/979d63d50c0c0f7bc537bf821e056cc9fe5abd3PatchThird Party Advisory
- https://github.com/torvalds/linux/commit/d3bd7413e0ca40b60cf60d4003246d067cafdedPatchThird Party Advisory
- https://support.f5.com/csp/article/K43030517
- https://support.f5.com/csp/article/K43030517?utm_source=f5support&%3Butm_medi
- https://usn.ubuntu.com/3930-1/Third Party Advisory
- https://usn.ubuntu.com/3930-2/Third Party Advisory
- https://usn.ubuntu.com/3931-1/Third Party Advisory
- https://usn.ubuntu.com/3931-2/Third Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=979d63PatchThird Party Advisory
FAQ
What is CVE-2019-7308?
CVE-2019-7308 is a vulnerability with a CVSS score of 5.6 (MEDIUM). kernel/bpf/verifier.c in the Linux kernel before 4.20.6 performs undesirable out-of-bounds speculation on pointer arithmetic in various cases, including cases of different branches with different stat...
How severe is CVE-2019-7308?
CVE-2019-7308 has been rated MEDIUM with a CVSS base score of 5.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-7308?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Canonical Ubuntu Linux, Opensuse Leap.